Read as
Last updated: April 29, 2026
Why this module exists. “We added Istio and now we have zero trust.” No, you don’t. Service mesh adds powerful primitives — mTLS, identity-aware authorization — but most installations use ~20% of those primitives. The remaining 80% is where attacks live.
Why this module exists. “We added Istio and now we have zero trust.” No, you don’t. Service mesh adds powerful primitives — mTLS, identity-aware authorization — but most installations use ~20% of those primitives. The remaining 80% is where attacks live.
What service mesh actually does
An Envoy / Linkerd-proxy sidecar intercepts every request entering and leaving each pod. The sidecar handles:
- mTLS — auto-issues per-pod certificates, encrypts all pod-to-pod traffic, validates the peer’s identity.
- Authorization — which services can call which other services, on which paths, with which methods.
- Observability — every request logged with source/dest service identity, timing, status.
- Traffic management — canary deployment, circuit breaking, retries.
Want this for your team?
Custom team training + practitioner advisory
Beyond the free academy — we run private workshops, vCISO advisory, and red-team exercises tailored to your stack. For Indian SMBs scaling past their first hire.
Book team training call
Replies in 4 working hrs · India-only · Senior consultants